CN112577395A - Deep hole inner diameter measuring device and measuring method - Google Patents
Deep hole inner diameter measuring device and measuring method Download PDFInfo
- Publication number
- CN112577395A CN112577395A CN202011497820.8A CN202011497820A CN112577395A CN 112577395 A CN112577395 A CN 112577395A CN 202011497820 A CN202011497820 A CN 202011497820A CN 112577395 A CN112577395 A CN 112577395A
- Authority
- CN
- China
- Prior art keywords
- deep hole
- inner diameter
- wedge
- graduated scale
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a deep hole inner diameter measuring device and a measuring method, wherein the device comprises a spring pressing sheet (3), a sliding seat (4), a body (5), a wedge (6), a pipe (8), a shaft sleeve (9), a connecting rod (10), a frame (11), a screw (15), a graduated scale (16), a vernier graduated scale (17), a handle (22), a fixed measuring head (23), a working head (24) and a calibration ring (26): the side wall of the body is provided with a guide hole; a slide seat is arranged in the guide hole, and the workload head is positioned on the slide seat; the wedge is positioned in the body, and the rear end of the wedge is connected with the connecting rod; the wedge is provided with a working inclined plane which is contacted with the sliding seat, and the device is provided with a scale. When the device is used, the calibration ring is firstly used for calibrating the workload head, the whole workload head of the gauge is stretched into the position to be measured of the deep hole, the wedge is moved, and when the workload head is driven to stretch out of the limit position, the reading is carried out and the inner diameter measurement result is calculated. The invention has relatively independent measurement and can realize high-efficiency and high-precision measurement of the inner diameter of the specified depth of the deep hole.
Description
Technical Field
The invention belongs to the technical field of metering detection, and particularly relates to a deep hole inner diameter measuring device and a measuring method.
Background
In the process of producing, processing and using the deep-hole workpiece, due to the problems of processing error, use abrasion, local corrosion and the like, the inner diameter of the deep-hole workpiece is affected, and the normal use of the deep-hole workpiece is further affected, so that the inner diameter of the deep-hole workpiece is measured at different parts in the process of delivering and using the workpiece to judge whether the inner diameter meets the requirement or not. To accomplish such measurement, a measuring device and a measuring method are required to perform more accurate inner diameter measurement on the cross sections of different depths of the deep hole on the premise of relatively independent measurement (independent of external display equipment, power sources, air sources and other energy sources). However, the existing measuring device does not have the functions of relatively independent measurement, long measuring range, high precision and easy operation.
A device is required that can be inserted into the hole and can be used to make internal diameter measurements for different cross-sections. The deep hole inner diameter measuring device can meet the measuring requirement by simply calibrating the calibration ring gauge before use. When the measuring device is used, the measuring device is placed coaxially with a workpiece (V-shaped iron can be used for supporting), the measuring front end extends into different depth positions in a measured depth hole, and the rear end handle is pulled to measure the inner diameter. And then simply adding the measurement reading and the manufacturing size of the calibration ring gauge to obtain a measurement result.
Disclosure of Invention
The invention provides a deep hole inner diameter measuring device and a measuring method, and aims to solve the technical problems that: the measurement is realized with high efficiency and high precision on the premise of relative independence (independent of external display equipment, power supply, air source and other energy sources), the operation is convenient, and the inner diameter of the specified depth of the deep hole can be measured.
In order to solve the above technical problems, the present invention provides a deep hole inner diameter measuring device, comprising: the device comprises a cover, a screw, a spring pressing sheet, a sliding seat, a body, a wedge, a screw, a pipe, a shaft sleeve, a connecting rod, a frame, a plate, a nut, a screw, a graduated scale, a vernier graduated scale, a screw, a pin, a nut, a pin, a handle, a fixed measuring head, a working measuring head, a screw and a calibration ring; the body is of a cylindrical structure, and the side wall of the body is provided with a guide hole; a slide seat is arranged in the guide hole, and the workload head is positioned on the slide seat; the wedge is positioned in the body, and the rear end of the wedge is connected with the connecting rod; the wedge requires at least one working bevel to contact the slide.
Furthermore, the outer wall of the body is provided with a fixed measuring head, and the maximum distance between the vertexes of the fixed measuring head is ensured to be smaller than the actual size of the measured deep hole. The spring pressing sheet is arranged in the body, the spring pressing sheet has enough elasticity to press the sliding seat inwards, so that the bottom surface of the sliding seat is tightly attached to the wedge, and the sliding seat is retracted inwards in a natural state. The front end of the body is provided with a cover, and the rear end of the body is connected with the frame through a pipe and needs to be fastened by screws, so that dislocation is avoided.
Furthermore, the connecting rod is positioned in the shaft sleeve in the pipe, and the rear end of the connecting rod is connected with the handle; the connecting rod is provided with an anti-rotation plane, the plate is pressed on the anti-rotation plane and is fixed with the frame to prevent the connecting rod from rotating, the connecting rod is provided with the vernier scale, and the vernier scale and the scale of the scale are ensured to be positioned on the same plane during installation.
Furthermore, a graduated scale is arranged on the frame through guiding; the lower end of the graduated scale is provided with a guide groove for preventing rotation. The upper end of the graduated scale is connected with the frame through a screw rod, the position of the graduated scale is convenient to adjust, and a screw is arranged at the rear end of the graduated scale and used for fixing after adjustment. The screw rod is positioned on the frame, one end of the screw rod is provided with a nut, and the other end of the screw rod is provided with a nut; the nut is provided with anti-skid lines.
Furthermore, the surface of the sliding seat contacted with the wedge is an arc cylindrical surface, and the hardness is lower than that of the working surface of the wedge contacted with the sliding seat.
A deep hole inner diameter measuring method comprises the following steps:
1. during calibration, the calibration ring is placed coaxially with the tube, the fixed measuring head and the working measuring head are sleeved in the calibration ring, the handle is pulled to the limit, the graduated scale is adjusted under the state, the graduated scale is aligned with the 0 line of the vernier graduated scale, and under the state, the graduated scale is locked by using the screw and the calibration ring is taken down.
2. During measurement, the device is placed coaxially with a measured deep hole, a fixed measuring head and a working measuring head at a measuring end extend into a measured part, a handle is pulled to the limit, a reading method is carried out through the graduated scale and the vernier graduated scale under the state, the reading method of the vernier caliper is referred to, the left end of a scale line of a numerical value n '0' is recorded to be negative, and the right end of the scale line of the numerical value n '0' is recorded to be positive.
3. When data are output, the numerical value n recorded in the previous step is multiplied by tan alpha to obtain an offset value: ntan alpha, then the inner ring calibration value d of the calibration ring 31 is added with 2 times of the deviation value as shown in fig. 6, and the actual diameter of the measured deep hole is obtained as follows: d +2ntan α.
Has the advantages that:
1. the invention can carry out more accurate inner diameter measurement on the sections of different depths of the deep hole on the premise of relatively independent measurement (independent of external display equipment, power supply, air source and other energy sources).
2. The invention can measure the aperture and depth of the deep hole in a large range, and theoretically has no specific limitation on the measuring range of the aperture and the depth of the deep hole.
3. The invention has the characteristics of convenient operation, high efficiency and high measurement precision, can accurately measure the aperture of a hole with a certain depth by controlling the length of the measuring device extending into the hole, and can measure for many times so as to judge the position degree parameters such as roundness and the like.
4. Compared with the deep hole inner diameter measuring device in optics, electromagnetism and the like, the deep hole inner diameter measuring device has the characteristics of low cost, easiness in maintenance and simplicity and easiness in learning of the measuring method, can greatly reduce the measuring cost and has good popularization.
Drawings
FIG. 1 is a main plan view and a plan view of a deep hole inner diameter measuring device according to the present invention;
FIG. 2 is a front view of a measuring end of a deep hole inner diameter measuring device according to the present invention;
FIG. 3 is a sectional view of a measuring end portion of a deep hole inner diameter measuring apparatus according to the present invention;
FIG. 4 is a top and bottom plan view of a reading end of a deep hole inner diameter measuring device according to the present invention;
fig. 5(1) is a partial cross-sectional view of a reading end of a deep hole inner diameter measuring device of the present invention, and (2) is an example of a ruler;
FIG. 6 is a front view of a calibration ring gauge for a deep hole inner diameter measuring device according to the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention is provided.
The utility model provides a deep hole internal diameter measuring device which characterized in that: the device comprises a cover 1, a screw 2, a spring pressing sheet 3, a sliding seat 4, a body 5, a wedge 6, a screw 7, a pipe 8, a shaft sleeve 9, a connecting rod 10, a frame 11, a plate 12, a nut 13, a screw 14, a screw 15, a graduated scale 16, a vernier graduated scale 17, a screw 18, a pin 19, a nut 20, a pin 21, a handle 22, a fixed measuring head 23, a working measuring head 24, a screw 25 and a calibration ring 26;
the body 5 is a cylindrical structure, and the side wall of the body is provided with a guide hole; a slide seat 4 is arranged in the guide hole, and a workload head 24 is positioned on the slide seat; the wedge 6 is positioned in the body 5, and the rear end of the wedge is connected with the connecting rod 10; at least two working slopes are required on the wedge 6 to contact the slide 4. The included angle between the working inclined plane and the axial line is alpha/2;
the fixed measuring head 23 is arranged on the outer wall of the body 5, the spring pressing sheet 3 is arranged in the body, the sliding seat 4 is pressed inwards, and the bottom surface of the sliding seat 4 is tightly attached to the wedge 6. The body 5 has a cover 1 at the front end and a frame 11 at the rear end through a pipe 8.
The connecting rod 10 is positioned in a shaft sleeve 9 in the pipe 8, and the rear end of the connecting rod is connected with a handle 22; the connecting rod 10 is provided with an anti-rotation plane on which the plate 12 is pressed and fixed to the frame 11. The connecting rod 10 is provided with a vernier scale 17.
A graduated scale 16 is arranged on the frame 11 through guidance; the lower end of the graduated scale 16 is provided with a guide groove, the upper end is connected with the frame 11 through a screw rod 15, and the rear end is provided with a screw 25. The screw 15 is positioned on the frame 11, one end of the screw is provided with a nut 13, and the other end of the screw is provided with a nut 20; the nut is provided with anti-skid lines.
The surface of the sliding seat 4 contacted with the wedge 6 is a circular arc cylindrical surface, and the hardness is lower than that of the working surface of the wedge 6 contacted with the sliding seat 4.
A measuring method of a deep hole inner diameter measuring device comprises the following steps:
in a first step, during calibration, the calibration ring 26 is placed coaxially with the tube 8 and the fixed 23 and work 24 heads are inserted, the handle 22 is pulled to the limit and the scale 16 is adjusted in this state, so that the scale 16 is aligned with the "0" line of the vernier scale 17, in which state the scale 16 is locked using the screw 25 and the calibration ring 26 is removed.
And secondly, during measurement, the device is placed coaxially with the measured deep hole, the fixed measuring head 23 and the working measuring head 24 at the measuring end extend into the measured part, the handle 22 is pulled to the limit, the reading method is carried out through the graduated scale 16 and the vernier graduated scale 17 under the state, the reading method of the vernier caliper is referred, and the left end of the n '0' scale line is recorded as negative, and the right end of the n '0' scale line is recorded as positive.
Thirdly, when data are output, multiplying the value n recorded in the previous step by tan alpha to obtain an offset value: ntan alpha, then the inner ring calibration value d of the calibration ring 31 is added with 2 times of the deviation value as shown in fig. 6, and the actual diameter of the measured deep hole is obtained as follows: d +2ntan α.
The invention can extend into the hole and can measure the inner diameters of different sections. The deep hole inner diameter measuring device can meet the measuring requirement by simply calibrating the calibration ring gauge before use. When the measuring device is used, the measuring device is placed coaxially with a workpiece (V-shaped iron can be used for supporting), the measuring front end extends into different depth positions in a measured depth hole, and the rear end handle is pulled to measure the inner diameter. And then simply adding the measurement reading and the manufacturing size of the calibration ring gauge to obtain a measurement result.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a deep hole internal diameter measuring device which characterized in that: comprises a spring pressing sheet (3), a sliding seat (4), a body (5), a wedge (6), a pipe (8), a shaft sleeve (9), a connecting rod (10), a frame (11), a screw (15), a graduated scale (16), a vernier graduated scale (17), a handle (22), a fixed measuring head (23) and a working measuring head (24); the body (5) is of a cylindrical structure, and the side wall of the body is provided with a guide hole; a sliding seat (4) is arranged in the guide hole, and the work head (24) is positioned at two ends of the sliding seat; the wedge (6) is positioned in the body (5), and the rear end of the wedge is connected with the connecting rod (10); the wedge (6) requires at least two working slopes, which are in contact with the slide (4).
2. The deep hole inner diameter measuring device according to claim 1, characterized in that the fixed gauge head (23) is arranged on the outer wall of the body (5), is arranged on the outer circumference of the body in the same cross section with the working gauge head, and is internally provided with the spring pressing sheet (3) which presses the sliding seat (4) inwards to enable the bottom surface of the sliding seat (4) to be tightly attached to the wedge (6).
3. A deep hole inner diameter measuring device according to claim 1, wherein the front end of the body (5) is connected with the cover (1) through screw threads.
4. A deep hole inner diameter measuring device according to claim 1, wherein the rear end of the body (5) is connected to the frame (11) through a pipe (8).
5. Deep hole inner diameter measuring device according to claim 4, characterized in that the connecting rod (10) is located in a sleeve (9) in the pipe (8), and the rear end is connected with the handle (22) through the frame; a vernier scale (17) is arranged on the connecting rod (10).
6. A deep hole inner diameter measuring device according to claim 5, characterized in that the connecting rod (10) is provided with an anti-rotation plane, and the plate (12) is pressed on the anti-rotation plane and fixed with the frame (11).
7. A deep hole inner diameter measuring device according to claim 5, characterized in that the frame (11) is provided with a graduated scale (16) through guiding; the lower end of the graduated scale (16) is provided with a guide groove, the upper end of the graduated scale is connected with the frame (11) through a screw rod (15), and the rear end of the graduated scale is provided with a screw (25).
8. The deep hole inner diameter measuring device according to claim 7, wherein the screw (15) is positioned on the frame (11), one end of the screw is provided with the nut (13), and the other end of the screw is provided with the nut (20); the nut is provided with anti-skid lines.
9. A deep hole inner diameter measuring device according to claim 2, characterized in that the surface of the sliding seat (4) contacted with the wedge (6) is a circular cylindrical surface, and the hardness is lower than the hardness of the contact working surface of the wedge (6) and the sliding seat (4).
10. The measuring method of the deep hole inner diameter measuring device according to claim 7, 8 or 9, characterized by comprising the steps of:
firstly, during calibration, a calibration ring (26) is placed coaxially with a tube (8), a fixed measuring head (23) and a working measuring head (24) are sleeved in the calibration ring, a handle (22) is pulled to the limit, a graduated scale (16) is adjusted under the state, the graduated scale (16) is aligned with the 0 line of a vernier graduated scale (17), and the graduated scale (16) is locked by a screw (25) and the calibration ring (26) is taken down under the state;
secondly, during measurement, the device is placed coaxially with a measured deep hole, a fixed measuring head (23) and a working measuring head (24) at a measuring end extend into a measured part, a handle (22) is pulled to the limit, reading is carried out through a graduated scale (16) and a vernier graduated scale (17) under the state, and a numerical value n is recorded;
thirdly, when data are output, multiplying the value n recorded in the previous step by tan alpha to obtain an offset value: and (3) ntan alpha, then adding an inner ring calibration value d of the calibration ring (31) with 2 times of the deviation value to obtain the actual diameter of the measured deep hole, wherein the actual diameter is as follows: d +2ntan alpha, wherein the included angle between the wedge and the axis is alpha/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497820.8A CN112577395A (en) | 2020-12-17 | 2020-12-17 | Deep hole inner diameter measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011497820.8A CN112577395A (en) | 2020-12-17 | 2020-12-17 | Deep hole inner diameter measuring device and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577395A true CN112577395A (en) | 2021-03-30 |
Family
ID=75135859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011497820.8A Pending CN112577395A (en) | 2020-12-17 | 2020-12-17 | Deep hole inner diameter measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112577395A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532235A (en) * | 2021-07-30 | 2021-10-22 | 江西昌河航空工业有限公司 | Tool and method for measuring center inner diameter of O-shaped sealing ring |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319864A (en) * | 2008-06-25 | 2008-12-10 | 无锡富瑞德精密机械有限公司 | Plug gauge head pore diameter measurement mechanism |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
| CN103822557A (en) * | 2014-03-18 | 2014-05-28 | 金陵科技学院 | Double-marble balanced centering type internal dial gauge |
| CN104422372A (en) * | 2013-08-27 | 2015-03-18 | 常州华尔澜工具有限公司 | Aperture measurement device |
| CN204286275U (en) * | 2014-12-18 | 2015-04-22 | 天津立林钻头有限公司 | Deep hole internal diameter R groove measures measurer |
| CN105547106A (en) * | 2016-02-02 | 2016-05-04 | 南京信息职业技术学院 | Depth aperture internal diameter measurement device |
| CN205981040U (en) * | 2016-08-24 | 2017-02-22 | 南京三方化工设备监理有限公司 | Aperture dimension measurement instrument |
| CN109813201A (en) * | 2019-01-28 | 2019-05-28 | 苏州群圣欣机械设备有限公司 | It is a kind of for detecting the detection device of part internal diameter |
| CN210089578U (en) * | 2019-07-26 | 2020-02-18 | 济南二建集团工程有限公司 | Hot melt pipeline connects internal diameter detection device |
-
2020
- 2020-12-17 CN CN202011497820.8A patent/CN112577395A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319864A (en) * | 2008-06-25 | 2008-12-10 | 无锡富瑞德精密机械有限公司 | Plug gauge head pore diameter measurement mechanism |
| CN202661020U (en) * | 2012-07-03 | 2013-01-09 | 新兴重工湖北三六一一机械有限公司 | Tool used for measuring depth of conical hole in deep hole |
| CN104422372A (en) * | 2013-08-27 | 2015-03-18 | 常州华尔澜工具有限公司 | Aperture measurement device |
| CN103822557A (en) * | 2014-03-18 | 2014-05-28 | 金陵科技学院 | Double-marble balanced centering type internal dial gauge |
| CN204286275U (en) * | 2014-12-18 | 2015-04-22 | 天津立林钻头有限公司 | Deep hole internal diameter R groove measures measurer |
| CN105547106A (en) * | 2016-02-02 | 2016-05-04 | 南京信息职业技术学院 | Depth aperture internal diameter measurement device |
| CN205981040U (en) * | 2016-08-24 | 2017-02-22 | 南京三方化工设备监理有限公司 | Aperture dimension measurement instrument |
| CN109813201A (en) * | 2019-01-28 | 2019-05-28 | 苏州群圣欣机械设备有限公司 | It is a kind of for detecting the detection device of part internal diameter |
| CN210089578U (en) * | 2019-07-26 | 2020-02-18 | 济南二建集团工程有限公司 | Hot melt pipeline connects internal diameter detection device |
Non-Patent Citations (1)
| Title |
|---|
| 傅成昌: "《形位误差检测技术问答》", 31 August 1990, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532235A (en) * | 2021-07-30 | 2021-10-22 | 江西昌河航空工业有限公司 | Tool and method for measuring center inner diameter of O-shaped sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112577395A (en) | Deep hole inner diameter measuring device and measuring method | |
| CN207936891U (en) | A kind of instrument for measuring pitch diameter of internal thread | |
| CN210862484U (en) | Concave-convex table measuring tool for spigot | |
| CN102601733A (en) | Online conical hole grinding, machining and measuring method for workpieces with large conical holes | |
| CN209783445U (en) | Dimension measuring instrument | |
| CN109631720B (en) | Measuring method of annular cylinder | |
| CN207214939U (en) | Multifunctional absolute digimatic caliper of the measuring surface of two exterior measuring measuring jaws with gauge head set mounting hole | |
| CN211626296U (en) | Vernier type thread depth gauge checking fixture | |
| CN201344779Y (en) | Measuring means for diameter of dial indicator | |
| CN212931286U (en) | Hole depth error measurement gauge | |
| CN111780649B (en) | Taper measuring tool | |
| CN104374277A (en) | Hole diameter measuring tool | |
| CN103983175A (en) | Outer cone detector | |
| CN211626401U (en) | Digital display type thread depth gauge | |
| CN108151613B (en) | Measuring method of measuring tool for measuring space diameter of V-shaped outer ring groove | |
| CN212963077U (en) | Three-point inside micrometer with depth positioning | |
| CN216448752U (en) | Detection jig for bottom of shell groove | |
| CN219914267U (en) | Annular workpiece measuring tool | |
| CN220454474U (en) | Shallow depth hole gauge | |
| CN217716239U (en) | Special measuring tool for inner and outer diameters of annular groove of wheel disc of gas turbine and diameter of welding spigot | |
| CN216348383U (en) | High-speed section transmission shaft compression length detector | |
| CN218723753U (en) | Rapid gauge for measuring axial distance | |
| CN210464308U (en) | High-precision measuring device for groove wall thickness | |
| CN220541924U (en) | Comprehensive measuring device for parts with high outside and deep inside | |
| CN220103967U (en) | Device for measuring annular groove depth of inner cavity of cylindrical part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |